Trail Running calendar near Builth Wells 2026-2027

Trail distances of 10K, half (13.1 mi) and full marathon (26.2 mi) on the Shropshire Hills from Carding Mill Valley, with waymarked routes, aid stations, a medal, marshals and a cake competition.

Join the Butterfly Run at Parc Taf Bargoed with rock up and run starts across distances from 5 km to ultra on a scenic tarmac course with a short riverside trail. Staggered starts, aid stations and an optional supersized spinning medal awai..

Ludlow10 on 12 July 2026 offers a half marathon, 10k and 5k around Ludlow with quiet lanes and off road sections on Whitcliffe Common. Routes feature undulating terrain and a steep ascent known as the Donkey Steps.

Join this multi lap marathon and half marathon event in Worcester featuring a flat off road course. Run solo or in relay teams with fancy dress and support local stroke recovery charities.

A multi distance trail event on the Gower Peninsula on 18 and 19 July 2026, based at Penrice Castle with camping and full support. Routes include a 100 km figure of eight plus shorter loops, rest stops and GPS tracking.

Trail races on the private Merthyr Mawr Estate combine dune, hill and coastal terrain. Event options include a 12K, a new 40K and a selection of family races.

A guided traverse of all 14 Welsh peaks over 3000 feet from Pen Y Pass near Capel Curig. Options include a single day 20 hour challenge or a two day guided programme with run and walk pace choices and on route support.

Three point-to-point coastal races along the Wales Coast Path finishing at the Norwegian Church in Cardiff Bay. Routes feature beaches, dunes, cliffs and mapped GPS navigation with checkpoint support and live tracking.

Test your physical endurance at Huntley Estate with eight strength tests and eight one kilometer off road trail runs. Earn your official time and medal in this outdoor challenge organized by Trimax Events.

A 12-hour multi-loop challenge in Bridgend where runners repeat three 10 mile routes to cover as much distance as possible. The mixed-terrain course includes hills and forestry trails and entries are limited to 30 runners.

Wye Valley Tunnel Run on 19 July 2026 features fun runs plus 10 km, half marathon and marathon routes that use the Wye Valley Greenway and long tunnel. Courses are well marked with feed stations and event medals.

A scenic trail run in Herefordshire starting from Aymestrey. Choose between a 10-mile route with 1,800 feet of climb or a 5-mile option. The course features lanes, forest tracks, and trails.

A traditional off-road fell race on 19 July 2026 at Selworthy Beacon, about 4 miles with 1000 ft ascent and self-navigation required; entry is £12 for FRA members and £14 for non-members.

A trail 10 km at Llys Y Fran on 19 July 2026 set around lakeside and woodland scenery as part of the RTT Series. The event includes chip timing, water stations and a fully marshalled route.

A professionally guided three day traverse of Northern Snowdonia covering 47 summits in just over 100 km with about 9,000 m of ascent. Small guided groups return to Capel Curig each night with on‑route support and refuelling.

A marked fell race in South Wales on 23 July 2026, covering 5.5 km with 315 m of climb. Entry on the day costs £3 and the minimum age is 16. Post race tea and cake are available; bring your own mug.

A 100 km route across the Brecon Beacons with 3178 m ascent, six staffed checkpoints and a 24 hour cut off. Entry by application on 25 July 2026 requires prior ultramarathon experience and competent map and compass navigation.

A 100 mile mountain ultramarathon following the Beacons Way National Trail through the Brecon Beacons. This self navigation race features over 6000m of ascent and passes the highest peaks in South Wales.

Multi distance trail race along the River Severn between Ironbridge and Bridgnorth. Distances run from 9 miles to 37 miles with 9.4 mile laps and aid stations every 4.7 miles.

Experience the wild beauty of the Brecon Beacons with a range of trail races from 12km to 110km. This UTMB Index event offers multi-stage and single-day options through the rugged hills of Wales.